Class: Hash

Defined in:
lib/plist4r/mixin/ruby_stdlib.rb

Direct Known Subclasses

Instance Methods

Instance Method Details

- (Object) merge_array_of_hashes_of_arrays(array_of_hashes_of_arrays)

Merge together an array of complex hash structures

Examples:

@aohoa1 = {}

@aohoa2 = [
  { :array1 => [:a], :array2 => [:a,:b], :array3 => [:a,:b,:c] },
  { :array1 => [:aa], :array2 => [:aa,:bb], :array3 => [:aa,:bb,:cc] },
  { :array1 => [:aaa], :array2 => [:aaa,:bbb], :array3 => [:aaa,:bbb,:ccc] }
]

@aohoa1.merge_array_of_hashes_of_arrays(@aohoa2)
=> { 
  :array1 => [:a,:aa,:aaa], 
  :array2 => [:a,:b,:aa,:bb,:aaa,:bbb], 
  :array3 => [:a,:b,:c,:aa,:bb,:cc,:aaa,:bbb,:ccc]
}

See Also:



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# File 'lib/plist4r/mixin/ruby_stdlib.rb', line 90

def merge_array_of_hashes_of_arrays array_of_hashes_of_arrays
  a = array_of_hashes_of_arrays
  raise "not an array_of_hashes_of_arrays" unless a.is_a? Array
  if a[0].is_a? Hash
    h = self.deep_clone
    a.each_index do |i|
      raise "not an array_of_hashes_of_arrays" unless a[i].is_a? Hash
      a[i].each do |k,v|
        raise "not an array_of_hashes_of_arrays" unless v.is_a? Array
        h[k] = [h[k]].flatten.compact + v
      end
    end
  else
    raise "not an array_of_hashes_of_arrays"
  end
  h
end

- (Object) merge_array_of_hashes_of_arrays!(array_of_hashes_of_arrays)

See Also:



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# File 'lib/plist4r/mixin/ruby_stdlib.rb', line 109

def merge_array_of_hashes_of_arrays! array_of_hashes_of_arrays
  h = merge_array_of_hashes_of_arrays array_of_hashes_of_arrays
  self.replace h
  self
end